Samsung Electronics announced today at the Storage Visions 2009 Conference that it has developed a 100GB single-level cell (SLC) solid state drive for use in servers for applications such as video on demand, streaming media content delivery, internet data centers, virtualization and on-line transaction processing. As an alternative to traditional 15K rpm hard disk drives (HDDs), the new performance-optimized 100GB Enterprise SSD can process IOPS (input/output per second) more than 10 times faster than the fastest 15K rpm SAS HDD available. Designed to remove the system performance bottleneck in enterprise storage applications, the high-performance 2.5-inch enterprise drive reads data sequentially at 230 megabytes per second and writes sequentially at 180 MB/s. The 100GB SSD’s advanced performance is attributed to a sophisticated 8-channel controller, improved NAND flash and special drive firmware, all developed by Samsung. The drive also consumes only 1.9 watts of power in seek mode and 0.6 watts in idle mode, reducing power and heat loads to minimum. Samsung intends to start mass producing the 100GB SS805 drive in the first quarter of 2009.

MLC requires a cell to be formatted/cleared before new data can be written, which requires a lot of cache to prevent the 'stutter bug' of early gen MLC drives. SLC's dont have that, and their performance is higher overall.